Google Books Ngram Viewer

Graph these comma-separated phrases:
case-insensitive
between and from the corpus with smoothing of .  
Search in Google Books:

1900 - 1930 1931 - 1953 1954 - 1959 1960 - 1997 1998 - 2008 kobenhavn German
1900 - 1928 1929 - 1978 1979 1980 - 1994 1995 - 2008 københavn German
1900 - 1909 1910 - 1937 1938 - 1945 1946 - 1991 1992 - 2008 kopenhagen German

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